SAN JUAN, Puerto
Rico (AP) -- A fugitive Puerto Rican guerrilla
leader warned
Tuesday that his group would take action if the U.S. Navy
renews its military
training exercises on Vieques island.

Filiberto Ojeda
Rios, head of the Macheteros, or Cane Cutters, refused
to say what
the group might do. But it has been blamed for a series of
attacks on civilian
and U.S. military targets in Puerto Rico, including a
1979 shooting
at a Navy bus that killed two people and wounded nine
others.

``They know that
we speak seriously,'' Ojeda Rios said in an interview
broadcast on
radio station WIAC.

Protesters have
occupied a Navy bombing range on Vieques since a
civilian guard
was killed on April 19 in an accidental bombing. U.S. Navy
operations on
the island have been the target of protests and legal actions
since the 1960s.

On Friday, President
Clinton announced that limited exercises would
resume next
spring but that the range will close in five years. Puerto Rican
officials want
an immediate closure.

In his interview,
Ojeda Rios said the Macheteros ``will be paying very
close attention
to Vieques.''

Ojeda Rios was
sentenced in absentia to 55 years in prison for the 1983
robbery of $7.2
million from a Wells Fargo armored truck in West
Hartford, Conn.
He was arrested in 1985 but disappeared while on bail
in 1990. In
January, the FBI increased its reward for his capture from
$150,000 to
$500,000.

Also Tuesday,
10 people were arrested outside the United Nations
headquarters
in New York for carrying out a protest against U.S. military
training on
Vieques, a U.N. spokesman said.

The demonstration
caused delays at the main U.N. visitors' entrance and
brought a temporary
halt to U.N. tours to ensure that none of the
protesters joined
the tour groups, spokesman Fred Eckhard said. He
said the 10
demonstrators were charged with disorderly conduct.